Precalc0011to0016-page8

Precalc0011to0016-page8 - We multiply both sides by the...

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(Section 0.11: Solving Equations) 0.11.8 PART D: SOLVING RATIONAL EQUATIONS We often solve a rational equation by first multiplying both sides by the LCD . WARNING 10 : Indicate restrictions that are “hidden” by this step. Example 6 (Solving a Rational Equation) Solve 9 x 3 = 1 4 x . § Solution
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Unformatted text preview: We multiply both sides by the LCD, 4 x 3 . 9 x 3 = 1 4 x 9 x 3 4 x 3 ( ) = 1 4 x 4 x 3 ( ) 36 = x 2 x ( ) x 2 = 36 x ( ) x = 6 The solution set is: 6, 6 { } . WARNING 11 : If we had obtained x = , we would have had to reject it....
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This document was uploaded on 12/29/2011.

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